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3 years ago

Give an example of change that includes more than one change

Chemistry

1 answer:

bogdanovich [222]3 years ago

6 0

Answer:

candle.

Explanation:

Candle has more than one change chemical and physical.

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Is the process of making a glass of lemonade a physical or chemical change?? Explain.

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Physical I think

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3 years ago

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True or False of the three states of matter, molecules in solids have the greatest

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False. gases have to greatest freedom of motion

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How many grams of water are produced from the combustion of 45.2 g of

Zina [86]

Answer:

101.56 of H₂O

Explanation:

The balanced equation for the reaction is given below:

CH₄ + 2O₂ —> CO₂ + 2H₂O

Next, we shall determine the mass of CH₄ that reacted and the mass of H₂O produced from the balanced equation. This is illustrated below:

Molar mass of CH₄ = 12 + (4×1.01)

= 12 + 4.04

= 16.04 g/mol

Mass of CH₄ from the balanced equation = 1 × 16.04 = 16.04 g

Molar mass of H₂O = (2×1.01) + 16

= 2.02 + 16

= 18.02 g/mol

Mass of H₂O from the balanced equation = 2 × 18.02 = 36.04g

SUMMARY:

From the balanced equation above,

16.04 g of CH₄ reacted to produce 36.04 g of H₂O.

Finally, we shall determine the mass of water, H₂O produced by the reaction of 45.2 g of methane, CH₄. This can be obtained as illustrated below:

From the balanced equation above,

16.04 g of CH₄ reacted to produce 36.04 g of H₂O.

Therefore 45.2 g of CH₄ will react to produce = (45.2 × 36.04)/16.04 = 101.56 g of H₂O.

Thus, 101.56 of H₂O were obtained.

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3 years ago

Sound travels in waves. Sound waves are compression waves. Pick the place where it is impossible to hear sounds.

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You can not hear sound in vacuumed places like space. Wherever there is a high altitude, it makes it harder to hear sound and harder to breathe. Sound travels best in solids. Hope that helps a little bit.

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4 years ago

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Using the periodic table as a reference, which elements could bond to form a compound most like NaCl?

pychu [463]

step by step

Na(sodium)=2.8.1

Cl (Chlorine)=2.8.7. sodium will give the chlorine the 1 valence electron to become stable ions.

answer

pottasium. (2.8.8.1) and Flourine(2.7)

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3 years ago

Give an example of change that includes more than one change​

Give an example of change that includes more than one change